When an object is moving away from an observer, the visible light it emits is Doppler-shifted toward the
A) ultraviolet.
B) infrared.
C) radio.
D) ultrasonic.

Question

Quizplus · Accepted Answer

When an object is moving away from an observer, the visible light it emits is Doppler-shifted toward the red end of the spectrum, which is closer to the infrared range. This phenomenon is known as the redshift.

When an Object Is Moving Away from an Observer, the Visible